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6 lines
233 B
Ruby
6 lines
233 B
Ruby
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# This class models an edge in a directed graph.
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class Edge < ActiveRecord::Base
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belongs_to :source, :class_name => 'Vertex', :foreign_key => 'source_id'
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belongs_to :sink, :class_name => 'Vertex', :foreign_key => 'sink_id'
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end
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